Which bus should I take to get to Forbidden City north entrance from Ghost St in Beijing?

Walk from the street to Beixinqiao MTR Station to take subway line 5 to get off at Dongsi Station. Get out from Exit C and you can walk to Dongsi Lukou East to take bus no. 101, 109 or 609 to Forbidden City. Then you can easily walk to the North Entrance of Forbidden City.

Actually, it is aruond 4km between. You can take a taxi to reach easily.